Kick-start your workout with these 10 exercises that target every part of your body from Adam Campbell's The Women's Health Big Book of Exercises.

By Adam Campbell

There's a popular saying among fitness experts: ''The best exercise is the one you're not doing.'' The take-home message? To achieve the best results, you need to regularly challenge your body in new ways. So while classic movements like the pushup, lunge and squat are the staples of any good workout plan, varying the way you perform these exercises every four weeks can help you avoid plateaus, beat boredom and speed fat loss.

And that's why I wrote The Women's Health Big Book of Exercises. From start to finish, this makeover manual bulges with full-color photos of more than 600 exercises, along with scores of cutting-edge workouts from the world's top trainers. All to give you thousands of ways to upgrade your old workout—and sculpt the body you've always wanted. You can start today, with this list of the best new exercises for every part of a woman's body.